Improvement in stgve-machines



niiet tant WILLIAM' S. COLWELL, OI' ALLEGIIENY CITY, PENNSYLVANIA.

Leners'Betem-Na. 83,466, deed comme@ 186s.

vIMIPRO'V'Elli/[IElIli IIN' STAVE-MACHINES. l

The Schedule referred to in these .Letteral Patent and-making part ofthe me,-

that the following is a full, clear, and exact description' thereof,reference being had to the accompanying draws ings, and tothe lettersand figures of reference marked thereon. 4, The nature of my inventionconsists-in-:providing the ram of stave-machines-with a rack, and com`bining therewithV a series of wheels, for imparting tol said ram areciprocating motion, the Whole'be'ing constructed, arranged, andoperatingin 'the'.,lnanner hereinafter described. 1J

'rol enable4 others sinnedin the art of eensheeting stave-machines tomake and use my improvement, I will proceed toI describe itsconstruction and operation.

In the accompanying drawings, which' form part of my speciii'cationFigure l is a top view of my improvement in rams for stave-machine.

Figure 2 is a side elevation ,of the same.

In the drawings, A represents the frame, connected with the ram.

The ram B is made in any of the known forms, and is provided with aT-head, D, which moves in slides G.

To the back part of the ram vB is secured Aa rack, marked e, which isprovided with a detachable and an adjustable tooth, x.

Into the rack e gear two wheels, f and i, the wheel fi having teeth ononly'part of its periphery.

On the shaft 2, above Wheel f, is a wheel, g, which .gears into thewheel h, which has teeth on only part of its periphery, and isplacedabove the iwheel t', on shaft 3.

The tooth of the rack eis made detachable and adjustable, for thepurpose of adjusting said tooth to the gear of wheels h and i, and forremoving said tooth 'when it becomes worn out, said tooth beingsubjected to the greatest wear and friction.

The stop 'n is used-for thepnrpo'se of preventing the ram from beingthrown too far forward, and thus placing wheels and rack e out'of propergear.

'As the construction and arrangement of the several parts will beclearly seen byrefercnceto .theaccoml panying' drawings, I will, without4fnrtliendescription of theirconstruction, proceed to describe the.operation, which is as follows: By turning the shaft 3, the wheel hwillrevolve the wheel g, and shaft 2 and wheel f, which will move forwardram B, until the teeth of 'the wheel h pass outof gear with the teeth ofwheel g. By this time, the teeth of wheel i will come into gear withthe' teeth of the rack e, and will force back the ram B. `By this time,the teethiofwheel h will come into gear withwheel g, which will revolveit, and

the shaft 2 and wheel f, which will again movethe ram forward. And thuswill the wheels, in connection with the rack, continue to impart areciprocating motion to the rain, without the use of cords, weight, orspring, which are now used for drawing back the ram. Having thusdescribed the nature, construction, and operation of my improvement,

What I claim as of my invention is` Y Y The combination of the wheels f,g, 71 and t', with the rack'e, for imparting a reciprocating motion tothe `rain B, substantially as herein described and set forth.

' W. S. OOLWELL. Witnesses:

J AM'Es J. J oHNs'roN, GEO. H. THoMAs.

